Aside from having appeal based on the name, this site caught my eye when it was reviewed on GeekDad. You pay $2.99 a year and RenewBot will auto-renew your library books for you and send you emails or texts to remind you to return your books when they are due.
If you are the type of person that forgets to return items to the library then $2.99 a years seems like a small price to pay. Hell, it almost seems worth it for the renewal and reminder aspect.
Fair warning, not all libraries are supported, but Austin seems to be very well supported. Also there is a comment in the FAQ that mentions that if the library changes their site renewbot could break…but really when was the last time your library updated their website?